FooPlot is a vector graphics and Javascript-based function plotter. It uses SVG for the browsers that can handle it, and supports IE's native VML as well. Current functionality includes 2-D function plotting as well as a 3-D plotting demo (for Firefox and Opera). Planned features include connectivity to Google spreadsheets, curve fitting, and other types of plots.

Graphing a function has never been this easy - you just have to type http://fooplot.com/sin(x) or any other function you wish! No more fudging around with a complicated graphing calculator program!